<template>
  <div class="app-container">
    <el-form
      ref="role"
      :model="role"
      :rules="validateRules"
      label-width="120px"
    >
      <el-form-item label="角色名称" prop="roleName">
        <el-input v-model="role.roleName" />
      </el-form-item>
      <el-form-item>
        <el-button
          :disabled="saveBtnDisabled"
          type="primary"
          @click="saveOrUpdate"
          >保存</el-button
        >
        <router-link :to="'/mySetting/role/list'">
          <el-button type="info" plan>取消</el-button>
        </router-link>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import roleApi from "@/api/acl/role";

const defaultForm = {
  roleName: "",
};

export default {
  data() {
    return {
      role: defaultForm,
      saveBtnDisabled: false, // 保存按钮是否禁用,
      validateRules: {
        roleName: [
          { required: true, trigger: "blur", message: "角色名必须输入" },
        ],
      },
    };
  },

  // 监听器
  watch: {
    $route(to, from) {
      console.log("路由变化......");
      console.log(to);
      console.log(from);
      this.init();
    },
  },

  // 生命周期方法（在路由切换，组件不变的情况下不会被调用）
  created() {
    console.log("form created ......");
    this.init();
  },

  methods: {
    // 表单初始化
    init() {
      if (this.$route.params && this.$route.params.id) {
        const id = this.$route.params.id;
        this.fetchDataById(id);
      } else {
        // 对象拓展运算符：拷贝对象，而不是赋值对象的引用
        this.role = { ...defaultForm };
      }
    },

    saveOrUpdate() {
      this.$refs.role.validate((valid) => {
        if (valid) {
          this.saveBtnDisabled = true; // 防止表单重复提交
          if (!this.role.id) {
            this.saveData();
          } else {
            this.updateData();
          }
        }
      });
    },

    // 新增讲师
    saveData() {
      roleApi.save(this.role).then((response) => {
        // debugger
        if (response.success) {
          this.$message({
            type: "success",
            message: response.message,
          });
          this.$router.push({ path: "/mySetting/role/list" });
        }
      });
    },

    // 根据id更新记录
    updateData() {
      // teacher数据的获取
      roleApi.updateById(this.role).then((response) => {
        if (response.success) {
          this.$message({
            type: "success",
            message: response.message,
          });
          this.$router.push({ path: "/mySetting/role/list" });
        }
      });
    },

    // 根据id查询记录
    fetchDataById(id) {
      roleApi.getById(id).then((response) => {
        debugger;
        this.role = response.data.item;
      });
    },
  },
};
</script>
